Members of the prestigious In and Out Club, one of the oldest and most exclusive clubs in London, march around St. James's Square during the club's 150th birthday celebration on March 1, 2012 in London, England. Patrons of the private-members club, whose official title is the Naval and Military Club, gathered in Central London before marching with the Band of the Royal Logistics Corps to be greeted by Prince Philip, the Duke of Edinburgh, and retiring for lunch inside the club.